President Trump has often said he is good for ratings. It seems CNN and MSNBC agree. One analysis claims that in 2016 he received $5.6 billion in free media during the primary and the general elections. This is an astonishing sum but goes a long way to supporting the president’s assertion. Love him or hate him, people were tuning in to see what he said and the corporate media knew it.Some of the same outlets that got eyeballs and clicks during the 2016 election and continued to accumulate views by being rabidly anti-Trump for four years are worried. Or at...